regex.pp

$my_word = "foo"
$word = "foo"

## Pick the if statement
# if $my_word =~ /word/ {
# if $my_word =~ /${word}/ {
# if $my_word =~ /"${word}"/ {
# if $my_word =~ /#{word}/ {
  notify { "${my_word} has ${word} in it":}
}
else {
  notify { "${my_word} doesn't have ${word} in it":}
}

# Output:
#  $ puppet apply regex.pp
#  Notice: foo doesn't have foo in it